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Journal of Materials Science

, Volume 42, Issue 12, pp 4260–4264 | Cite as

Effect of structure change on thermal and dielectric characteristics in low-temperature firing Bi2O3–B2O3–ZnO glasses

  • Byung-Sook Kim
  • Eun-Sub Lim
  • Joon-Hyung Lee
  • Jeong-Joo KimEmail author
Article

Abstract

In a Bi2O3–B2O3–ZnO glass system, glass structure change, sintering behavior and resultant physical characteristics of the glass were examined when various amounts of Bi2O3 and ZnO mixture were added. When the total amount of Bi2O3 and ZnO was below 30 mol%, a phase separation occurred and homogeneous glass was not obtained. The fraction of four-coordinated borons (BO4) was highest when the total amount of Bi2O3 and ZnO was 50mol%. Further addition over 50 mol% induced a borate anomaly phenomenon in the glass, which resulted in the decrease in BO4 fraction. The sintering temperature and glass transition temperature decreased as the amount of Bi2O3 and ZnO increased. The thermal expansion coefficient and dielectric constant of the specimens were also examined.

Keywords

Glass Transition Temperature B2O3 Thermal Expansion Coefficient Bi2O3 Borate Glass 

Notes

Acknowledgement

This work was supported by the National Research Laboratory grant from the Ministry of Science and Technology (MOST) and Korea Science and Engineering Foundation (KOSEF).

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Byung-Sook Kim
    • 1
  • Eun-Sub Lim
    • 1
  • Joon-Hyung Lee
    • 1
  • Jeong-Joo Kim
    • 1
    Email author
  1. 1.Department of Inorganic Materials EngineeringKyungpook National UniversityDaeguKorea

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